Trailer hitch system



FIG. 1 is a front perspective view of a trailer hitch system of the present invention;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left-side elevational view thereof;

FIG. 4 is a right-side elevational view thereof;

FIG. 5 is a bottom plan view thereof.

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is front elevational view thereof. 

The ornamental design for a trailer hitch system, as shown and described. 